Specifications and features of NGK Japanese spark plug wires for Toyota 1FZ: Larger wire size than original and withstands high heat. High quality silicone and rubber. Recommended to install when modifying the car to ensure better spark and proper combustion. Compatible with Toyota 4500 1FZ engines. Spark plug wire set from NGK for only 600﷼. You can specify the spark plug number BKR6-7 as needed.